3 Mana Rare Shaman Spell
Destroy your opponent's most previously played minion
It's probably hard to tell at first, but the main intention of this card is to make Ancestor's Call more viable. This card would let you combo with it, where if the opponent summons something scary from the Ancestor's call, you can cast Stormstrike and it will be removed.
Also, I think that this card fills a slight gap in shaman removal, where they do have a lot of good spells right now, but crackle is the only card that can remove larger minions well, and even that is based on RNG. Stormstrike acts kind of like Deadly Shot, where the removal is a lot cheaper but there's a drawback. Here, the drawback is that you obviously only remove what the opponent last summoned. In a lot of situations this is good because people will tend to try to play larger minions on curve. However, your opponent can easily try to counterplay it; they might be playing paladin and summon Tirion Fordring, but follow it up with a hero power so that your stormstrike will now only target the token.
There's one technicality with the card that I'm still not sure about, though. If you kill the most previously summoned minion, do you think that stormstrike should move on to the next most previous minion or just become uncastable? I think that becoming uncastable is more fair, but it prevents a lot of counterplay.
